Patents by Inventor Haeyen YI

Haeyen YI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • REFRIGERANT SYSTEM
    Publication number: 20110192181
    Abstract: A refrigerant system is provided. The refrigerant system may use an electronic expansion valve that electronically controls an opening degree thereof, as a high-pressure valve and a low-pressure valve to selectively block a high-pressure branch valve and a low-pressure branch valve. Accordingly, noise transmitted to an interior space may be minimized when the operation mode of the refrigerant system is switched. In addition, the structure of the refrigerant system may be simplified.
    Type: Application
    Filed: February 2, 2011
    Publication date: August 11, 2011
    Inventors: Haeyen YI, Baikyoung Chung, Sedong Chang, Junggyu Park